The pineapple and tamarind are tropical fruits which contain citric acid. Pineapples are considered a high acid fruit and can also have a tangy and sharp vpnport.infog: splat. For over a decade my dearest friend Tim and I have continued an on-going debate about the proper categorization of Pineapple. The primary Missing: splat. Yet, amongst the most heated and riot-inciting of our debates was our infamous conflict as to whether the fruit pineapple is or is not a citrus vpnport.infog: splat.